FRANCISCO JAVIER PEREZ
NPI 1497538508
Marriage & Family Therapist in San Francisco, CA

NPI Status: Active since August 14, 2023

Contact Information

1663 MISSION ST STE 604
SAN FRANCISCO, CA
ZIP 94103
Phone: (415) 474-7310
Fax: (415) 673-2488

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  • Individual
  • Male
  • Marriage & Family Therapist

About FRANCISCO PEREZ

This page provides the complete NPI Profile along with additional information for Francisco Perez, a provider established in San Francisco, California with a medical specialization in Marriage & Family Therapist. The healthcare provider is registered in the NPI registry with number 1497538508 assigned on August 2023. The practitioner's primary taxonomy code is 106H00000X with license number 152431 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1497538508
Provider Name
FRANCISCO JAVIER PEREZ
Gender
Male
Entity Type
Individual
Location Address
1663 MISSION ST STE 604 SAN FRANCISCO, CA 94103
Location Phone
(415) 474-7310
Location Fax
(415) 673-2488
Mailing Address
1038 POST ST SAN FRANCISCO, CA 94109
Mailing Phone
(415) 775-2636
Is Sole Proprietor?
No
Enumeration Date
08-14-2023
Last Update Date
05-27-2025
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A marriage and family therapist like Francisco Perez help patients manage problems with their family and other relationships. Marriage and family therapists encourage clients to discuss their emotions and experiences and, develop strategies and skills to change behavior and cope with difficult situations. Many therapists apply cognitive behavioral therapy to help patients understand harmful thoughts, feelings, and also teach patients how to replace them with positive, life-enhancing ones.

Location Map

Secondary Locations

  • 1038 Post St
    San Francisco, CA 94109
    (415) 775-2636
  • 655 De Haro St
    San Francisco, CA 94107
    (415) 695-5781

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Marriage & Family Therapist

Taxonomy Code
106H00000X
Type
Behavioral Health & Social Service Providers
License No.
152431
License State
CA
Taxonomy Description
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

18471 (CA)

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1497538508, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
7
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
5
Unchanged
Pos 9
0
Doubled → 0
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 9 → 18 → 9 5 → 10 → 1 8 → 16 → 7 0 → 0

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 1 + 8 + 7 + 1 + 0 + 3 + 1 + 6 + 5 + 0 + 24 = 62

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1497538508.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Counselor
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Community/Behavioral Health
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Community Health Worker
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Social Worker
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Specialist
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Social Worker (Clinical)
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Marriage & Family Therapist
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Technician, Other
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Student in an Organized Health Care Education/Training Program
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103
Student in an Organized Health Care Education/Training Program
1663 MISSION ST STE 604
SAN FRANCISCO, CA 94103

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1497538508, enumerated as an "individual" on August 14, 2023.

The provider is located at 1663 MISSION ST STE 604 SAN FRANCISCO, CA 94103 and the phone number is (415) 474-7310.

Marriage & Family Therapist with taxonomy code 106H00000X.